Is what I'm doing safe?

[AceAnderson]

Here's the details:

99' Blazer

Pioneer X3700UI Head Unit

Stock 110 Amp Delco Alternator

Autocraft Silver Battery

Big 3 Upgrade done with 1/0 welding cable

2 Kicker L5 12's (06L5S12)

Hifonics BRZ 2400.1D Amplifier running 2400w @ .5 ohms

My Kickers are dual 2's, so I can only wire to 2 or .5 ohm. Meaning I can't get 2400 out of the amp (it's rating at 1 ohm). I decided to say f*** it and wire down to half ohm. Now I know efficiency goes right out the window with .5 ohm, but I wanna know if that's OK because I'm not demanding 3-4k out of it like most people would trying to double their power at .5 ohm. I'm just trying to get 2400 out of it, which is its max rating at 1 ohm, so, 2400 at .5 shouldn't be too bad should it?

I've been blasting em for a good hour now, and the amp gets a bit hot, but nothing extreme, no voice coil smell, no distortion. My voltage doesn't drop below 12v. Is this ok?

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[wew lad 5,000+ posts]

id probably say fuck it but dont clip it to death, measure your actual drop and rise with a clamp meter and go from there.

 

[adulbrich 5,000+ posts]

I'd want my voltage higher than 12's for daily, but lots of other people will tell you that's fine.

 

[AceAnderson]

Don't have a clamp meter but I set gains with a dmm.

 

[wew lad 5,000+ posts]

Don't have a clamp meter but I set gains with a dmm.

its worth the 15$ to buy one from harbor freight just to see where your actual rise is

 

[AceAnderson]

its worth the 15$ to buy one from harbor freight just to see where your actual rise is

I didn't realize they were that cheap! That will show me my real world RMS wattage that the subs are actually seeing too, right? And as a side note what can I get a good cheap oscope for? Nothing fancy, just me and my buddies tuning our systems.

 

[C1500martin 10+ year member]

At .5 your probably getting the 2400 it advertises at 1 ohm

 

[AceAnderson]

At .5 your probably getting the 2400 it advertises at 1 ohm

That's what I figured

 

[macsdad 10+ year member]

At .5 your probably getting the 2400 it advertises at 1 ohm

But at what risk though? Have you done the big3 op? Maybe add a second batt near the amp?

 

[C1500martin 10+ year member]

But at what risk though? Have you done the big3 op? Maybe add a second batt near the amp?

Blowing his amp and clipping his subs to death

 

[macsdad 10+ year member]

Blowing his amp and clipping his subs to death

Going to release that magic, for sure, and maybe even seize a coil, or two.

 

[AceAnderson]

Blowing his amp and clipping his subs to death

Read my first post. I have done the big 3. No extra battery but voltage is 12+ haven't seen it under.

PS I have a Kinetic HC800 I could hook up, should I?

 

[macsdad 10+ year member]

Couldn't hurt.

 

[C1500martin 10+ year member]

Should buy that js alt thats on sale here nice price for it i think he wants like $250 and its a 270A

 

[hispls 5,000+ posts]

Run the subs at double their rated power and the amp and half rated impedance, what could possibly go wrong?

Now that everyone has chimed in with their boogeyman advice you'll know that when you start breaking equipment it's from "clipping" or "not having enough electrical", not in fact from using your stuff way outside of it's design limits.

 

[AceAnderson]

Run the subs at double their rated power and the amp and half rated impedance, what could possibly go wrong?
Now that everyone has chimed in with their boogeyman advice you'll know that when you start breaking equipment it's from "clipping" or "not having enough electrical", not in fact from using your stuff way outside of it's design limits.

If they die, they die. I'm going to upgrade to 2 good 18s when they do, so for now, **** it. I want it LOUD. Generally speaking, I'll smell it before it blows, right? Because they put off no coil smell whatsoever

 

[hispls 5,000+ posts]

If they die, they die. I'm going to upgrade to 2 good 18s when they do, so for now, **** it. I want it LOUD. Generally speaking, I'll smell it before it blows, right? Because they put off no coil smell whatsoever

If you can afford to blow up your equipment then why even ask? Just abuse it til it breaks and buy something else.

 

[Jeffdachef 5,000+ posts]

get the two tc sounds 5400s in the classifieds if you want two good 18s

 

[AceAnderson]

If you can afford to blow up your equipment then why even ask? Just abuse it til it breaks and buy something else.

"Can" afford to is relative haha. I'd rather not blow them, cuz they'd put more cash in my pocket to upgrade, but realistically they are not actually seeing 3000 watts. Maybe close during a 50hz burp but on music it's less than half of that. They aren't even that much louder, probably 2-3dbs. I see people pushing triple-quadruple times rated power sometimes and they don't blow. A guy I saw a couple days ago had three 1k subs on bit over 5k. They were crying for dear mercy, and the smell was terrible, but they sat there and took it. If I don't smell em, it shouldn't be that big of a deal, right?

 

[los33 10+ year member]

"Can" afford to is relative haha. I'd rather not blow them, cuz they'd put more cash in my pocket to upgrade, but realistically they are not actually seeing 3000 watts. Maybe close during a 50hz burp but on music it's less than half of that. They aren't even that much louder, probably 2-3dbs. I see people pushing triple-quadruple times rated power sometimes and they don't blow. A guy I saw a couple days ago had three 1k subs on bit over 5k. They were crying for dear mercy, and the smell was terrible, but they sat there and took it. If I don't smell em, it shouldn't be that big of a deal, right?

Your pushing lower end equipment past the threshold norm.

The brz is a very good amp, but its not the best to run at .5 ohm. Most bigger amps do fine dropping to 12v.

The brz may end up blowing on even 12.5v @ .5 ohm.

Keep it at 13v+ until you get a better alt and possibly an agm battery.

Upgrade your amp before the subs.

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